---
- name: CLI | Check whether the binary is already present
  ansible.builtin.stat:
    path: "{{ _multica_bin }}"
  register: _multica_cli_stat
  check_mode: false

- name: CLI | Read the installed version
  ansible.builtin.command:
    argv: ["{{ _multica_bin }}", "--version"]
  register: _multica_cli_installed
  when: _multica_cli_stat.stat.exists
  changed_when: false
  failed_when: false
  check_mode: false

# `multica --version` prints e.g. "multica 0.6.5 (commit: ..., built: ...)".
- name: CLI | Extract the installed version string
  ansible.builtin.set_fact:
    _multica_cli_version_found: >-
      {{ ((_multica_cli_installed.stdout_lines | default([]) | first | default('')).split() + ['', ''])[1]
         if (_multica_cli_installed.rc | default(1)) == 0 else '' }}

- name: CLI | Decide whether an install is needed
  ansible.builtin.set_fact:
    _multica_cli_needs_install: "{{ (_multica_cli_version_found | trim) != multica_version }}"

- name: CLI | Install the pinned release
  when: _multica_cli_needs_install | bool
  block:
    - name: CLI | Create a staging directory
      ansible.builtin.tempfile:
        state: directory
        suffix: multica-cli
      register: _multica_stage
      become: true

    - name: CLI | Download the release tarball
      ansible.builtin.get_url:
        url: "{{ _multica_release_url }}"
        dest: "{{ _multica_stage.path }}/{{ _multica_tarball }}"
        checksum: "{{ ('sha256:' ~ _multica_checksums_url) if multica_verify_checksum | bool else omit }}"
        mode: "0644"
      become: true

    - name: CLI | Unpack the binary
      ansible.builtin.unarchive:
        src: "{{ _multica_stage.path }}/{{ _multica_tarball }}"
        dest: "{{ _multica_stage.path }}"
        remote_src: true
      become: true

    # Replacing the binary while the daemon runs is fine — the handler restarts
    # it, and the daemon also watches its own binary for version changes.
    - name: CLI | Install it onto the PATH
      ansible.builtin.copy:
        src: "{{ _multica_stage.path }}/multica"
        dest: "{{ _multica_bin }}"
        remote_src: true
        owner: root
        group: root
        mode: "0755"
      become: true
      notify: restart multica daemon

  always:
    - name: CLI | Remove the staging directory
      ansible.builtin.file:
        path: "{{ _multica_stage.path }}"
        state: absent
      become: true
      when: _multica_stage.path is defined